Smith was elected governor of New York for four terms (1919-20, 1923-28). As governor he attempted to bring an end to Child Labour, improve factory laws, housing and the care of the mentally ill. Smith was a popular figure in the Democratic Party and in 1928 Franklin D. Roosevelt returned to politics in an attempt to help him become president. Smith was the first Roman Catholic to be a serious candidate for the presidency. It is believed that his religion, combined with his opposition to Prohibition, led to his defeat by the Republican candidate, Herbert Hover.